Ch 24 II

Question 1

The greater the value of l, the

Answer 1

Greater the energy of the subshell

Question 2

The first two columns of the periodic table have what subshells?

Answer 2

S

Question 3

The right block of the period table has what subshell?

Answer 3

P

Question 4

Columns from 3-12 have what subshell?

Answer 4

D

Question 5

The Lanthanide and Actinide series have what subshell?

Answer 5

F

Question 6

The magnetic quantum number (ml) describes the

Answer 6

Orientation of the orbital in space

Question 7

The possible values of the magnetic quantum number (ml) range from

Answer 7

l to -l

Question 8

The shape and energy of each orbital depend on

Answer 8

The subshell in which the orbital is found

Question 9

When two electrons are in the same orbital, their spins are

Answer 9

Opposite due to the Pauli exclusion principle

Question 10

Electrons with parallel spins are electrons found in

Answer 10

Different orbitals with the same ms values

Question 11

Paired electrons are electrons with

Answer 11

Opposite spins in the same orbital

Question 12

What is the Aufbau principle?

Answer 12

Subshells are filled from the lowest to highest energy, each one filling up before the next

Question 13

What rule is used to determine subshell energy?

Answer 13

(n + l)

Question 14

Which will fill first, the 3d subshell or the 4s?

Answer 14

4s, since it has lower energy

Question 15

Materials are paramagnetic if it has

Answer 15

Unpaired electrons are aligned by a magnetic field, attracting them to a field

Question 16

Materials that have no unpaired electrons are repelled by a magnetic field are

Answer 16

Diamagnetic

Question 17

How stable are atoms with half-filled and fully-filled subshells?

Answer 17

Very stable

Question 18

Mg2+ has how many electrons?

Answer 18

10 electrons

Question 19

The ratio of naturally occurring chlorine-35 to its isotope chlorine-37 is 3:1. What is the standard atomic weight of chlorine?

Answer 19

35.5

Question 20

A student represents electrons within the same orbital as having parallel spins. This goes against which principle?

Answer 20

Pauli exclusion principle

Question 21

The maximum number of electrons in a shell with principle quantum number (n) of 4 is:

Answer 21

32 electrons

2)(4)(4

Question 22

In Bohr’s model of the hydrogen atom, the energy of an electron is dependent on:

Answer 22

The principle quantum number (n)

This is because the equation for energy of Bohr model is:

E = -Rh / n^2

Question 23

What describes the excitation exhibited when an electron jumps from its ground state to a higher energy level?

Answer 23

Atomic absorption spectrum

Question 24

The Pauli exclusion principle states that

Answer 24

No two electrons can have the same quantum number

Question 25

Atoms with the same atomic numbers but different mass numbers are known as

Answer 25

Isotopes

Question 26

If the principle quantum number (n) is 2, what orbitals will be present?

Answer 26

S and P

L = 0, 1 = s, p

Question 27

What is the total number of electrons that can be found in a subshell with angular momentum number (l) = 2?

Answer 27

10 electrons

4l + 2

Question 28

An element with the atomic number 26 has how many electrons in the 3d subshell?

Answer 28

6

Question 29

In going from 3p6 4s1 to 3p5 4s2, an electron would

Answer 29

Absorb energy